| Message ID | 20180727180841.19948-1-chris@chris-wilson.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915: Kick waiters on resetting legacy rings | expand |
Quoting Chris Wilson (2018-07-27 19:08:41) > For reasons unknown, interrupts following a reset do not arrive, but > this can be papered over by kicking any waiter and peeking at the > breadcrumbs following the reset. > > Testcase: igt/gem_eio/reset-stress > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Hmm, it probably explains References: https://bugs.freedesktop.org/show_bug.cgi?id=105957 -Chris
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index d1e03b7fbffa..c03f4fa4f350 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -527,6 +527,7 @@ static int init_ring_common(struct intel_engine_cs *engine) if (INTEL_GEN(dev_priv) > 2) I915_WRITE_MODE(engine, _MASKED_BIT_DISABLE(STOP_RING)); + intel_engine_wakeup(engine); out: intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
For reasons unknown, interrupts following a reset do not arrive, but this can be papered over by kicking any waiter and peeking at the breadcrumbs following the reset. Testcase: igt/gem_eio/reset-stress Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> --- drivers/gpu/drm/i915/intel_ringbuffer.c | 1 + 1 file changed, 1 insertion(+)